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tation to the other Contracting Party; such consultation may be carried out between the Aeronautical Authorities in accordance with the provisions of article 17 of the present Agreement. Any modifications so agreed shall come into force when they have been confirmed by an exchange of diplomatic notes.

ARTICLE 19 (Conformity with multilateral agreements)

The present Agreement and its Annex shall be deemed amended in conformity with a multilateral air transport agreement which may become binding no both Contracting Parties.

ARTICLE 20 (Disputes)

1 — Any dispute relating to the interpretation or application of the present Agreement or the Annex there of shall be settled by direct negotiations between the Aeronautical Authorities of the two Contracting Parties.

2 — If the Aeronautical Authorities fail to reach an agreement, the dispute shall be settled through diplomatic channels.

ARTICLE 21 (Denunciation and termination of the Agreement)

Either Contracting Party may at any time give notice to the other Contracting Party of its decision to denounce the present Agreement; such notice shall be simultaneously communicated to the International Civil Aviation Organisation. In such case, the Agreement shall terminate twelve months after the date of receipt of the notice by the other Contracting Party, the notice shall be deemed to have been received before the expiry of this period. In the absence of acknowledgement of receipt by the other Contracting Party, the notice shall be deemed to have been received fourteen days after the receipt of the notice by the International Civil Aviation Organization.

ARTICLE 22 (Registration with ICAO)

The present Agreement and its Annex and any amendments made there to in accordance with the article 18, shall be registered with the International Civil Aviation Organization.

ARTICLE 23

(Entry into force)

The provisions of the present Agreement shall be applied provisionally as from the date of its signature. The present Agreement shall come into force on the date when the Contracting Parties shall have notified each other, by diplomatic channels, of the completion of their respective constitutional formalities. In witness whereof the indersigned, being duly authorized thereto by their respective Governments, have signed this Agreement.

Done at Luanda, August 1977, in duplicate in the Portuguese language and in duplicate in the English language all the four texts being equally valid.

For the Government of Portugal: (Assinatura ilegível.)

For the Government of the People's Republic of Angola:

(Assinatura ilegível.)

ANNEX Section I

1 — The Government of Portugal desingates for the operation of the agreed services referred to in section ii, paragraph 1, Transportes Aéreos Portugueses, E. P. (TAP).

2 — The Government of the People's Republic of Angola designates for the operation of the agreed services referred to in section n, paragraph 2, Transportes Aéreos de Angola — TAAG — Linhas Aéreas de Angola.

Section II

1 — Routes to be operated in both directions by the airline designated by the Government of Portugal:

Lisbon — intermediate points — Luanda — points beyond.

2 — Routes to be operated in both directions by the airline designated by the Government of the People's Republic of Angola:

Luanda — intermediate points — Lisbon — points beyond.

3 — To operate the services referred in paragraph 1 of this section, the airline designated by the Government of Portugal shall have the right:

a) To put down in the territory of Angola international traffic in passengers, cargo and mail taken on in the territory of Portugal;

¿0 To take on in the territory of Angola international traffic in passengers, cargo and mail destined for the territory of Portugal;

c) To omit one or more intermediate points or points beyond, provided the omissions are previously published in the time-table should the designated airline enjoy traffic rights pursuant to section ni or to section rv.

4 — To operate the services defined in paragraph 2 of this section, the airline designated by the Government of the People's Republic of Angola shall have the right:

a) To put down in the territory of Portugal international traffic in passengers, cargo and mail taken on in the territory of Ax-